NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS FEB 24 2023 MOLLY C. DWYER, CLERK U.S. COURT OF APPEALS FOR THE NINTH CIRCUIT

THOMAS ARTHUR GANDARA, No. 22-55214

Plaintiff-Appellant, D.C. No. 5:21-cv-01616-SVW-KK

v. MEMORANDUM* GAVIN NEWSOM, Governor of California; TIMOTHY HOLLANDHURST, Superior Court Judge, Riverside California; EMMA C. SMITH, Superior Court Judge, Riverside, California; MICHAEL A. HESTREN, Riverside County District Attorney; AMBER LEE ZEXLER, Deputy District Attorney Riverside County; STEVEN L. HARMON, Riverside County Public Defender; MONICA NGUYEN, Deputy Public Defender Riverside County; NEAL HARRISON, Deputy Public Defender Riverside County; HARGUES, Deputy, Riverside County Sherriff's Department; REDD, Deputy, Riverside County Sherriff's Department,

Defendants-Appellees.

Appeal from the United States District Court for the Central District of California Stephen V. Wilson, District Judge, Presiding

* This disposition is not appropriate for publication and is not precedent except as provided by Ninth Circuit Rule 36-3. Submitted February 14, 2023**

Before: FERNANDEZ, FRIEDLAND, and H.A. THOMAS, Circuit Judges.

California state prisoner Thomas Arthur Gandara appeals pro se from the

district court’s judgment dismissing his 42 U.S.C. § 1983 action alleging

constitutional claims. We have jurisdiction under 28 U.S.C. § 1291. We review de

novo the authority of a magistrate judge. Bastidas v. Chappell, 791 F.3d 1155, 1159 (9th Cir. 2015). We affirm.

In his opening brief, Gandara failed to raise, and therefore has waived, any

challenge to the district court’s dismissal of his action. See Indep. Towers of Wash.

v. Washington, 350 F.3d 925, 929 (9th Cir. 2003) (“[W]e will not consider any

claims that were not actually argued in appellant’s opening brief.”); Acosta-Huerta

v. Estelle, 7 F.3d 139, 144 (9th Cir. 1993) (issues not supported by argument in pro

se appellant’s opening brief are waived).

The magistrate judge acted within her authority in dismissing Gandara’s

complaint with leave to amend and later issuing a report and recommendation to

the district judge recommending dismissal of the action. See 28 U.S.C.

§ 636(b)(1); McKeever v. Block, 932 F.2d 795, 798 (9th Cir. 1991) (“[D]ismissal

of a complaint with leave to amend is a non-dispositive matter” and “a magistrate

** The panel unanimously concludes this case is suitable for decision without oral argument. See Fed. R. App. P. 34(a)(2).

2 22-55214 can . . . dismiss a complaint with leave to amend without approval by the court.”);

see also Anderson v. Woodcreek Venture Ltd., 351 F.3d 911, 917 (9th Cir. 2003)

(“[T]he magistrate judge’s jurisdiction over any pretrial nondispositive matters,

including magistrate-recommended dispositions, is not contingent on litigant

consent[.]” (emphasis omitted)).

Contrary to Gandara’s contention, the district judge was not required to

conduct an initial review of his complaint. See 28 U.S.C. § 636(b)(1)(B) (“[A]

judge may also designate a magistrate judge to . . . submit to a judge of the court

proposed findings of fact and recommendations for the disposition”); id.

§ 636(b)(1)(C) (“A judge of the court may accept, reject, or modify, in whole or in

part, the findings or recommendations made by the magistrate judge.”).

AFFIRMED.

3 22-55214